<span><span><span>Side c = </span>18</span><span>
<span>Angle B = </span>79°
</span><span><span>Side a = </span><span>12
AB = side b
</span></span></span><span><span>Use the Law of Cosines to find the length of side b.</span><span> <span>
b^2 = </span><span>a^2 + c^2 − 2ac cos(B)</span></span><span> <span>
b^2 = </span><span>(122 + 182) − ( 2 x 12 x 18) cos(79°)</span></span><span>
<span>b^2 = </span>(144 + 324) − 432 x 0.191</span><span> <span>
b^2 = </span>468 - 432 x 0.191</span><span> <span>
b^2 = </span>468 - 82.429</span><span> <span>
b^2 = </span>385.571</span><span>
b = √385.571</span><span>
b = 19.636
Rounded to the nearest tenth is 19.6 cm.
Hope this helps!</span></span>
Answer:
n>12
Step-by-step explanation:
Answer:
5:3
Step-by-step explanation:
When the ratio says x:y=5:1, it means that x is 5 times greater than y. So, plug in 5 for x and 1 for y.
4(5)+5(1):3(5)
20+5:15
25:15 , if simplified then the ratio 5:3
Given info:
Radius - 7cm
Height - 10cm
Formula -
r = radius
h = height
Therefore, the step-by-step work is:
:)
Answer:
12
Step-by-step explanation: